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https://www.readbyqxmd.com/read/27933639/assessment-of-left-atrial-volume-and-function-by-real-time-three-dimensional-echocardiography-in-obese-patients
#1
Julide Yagmur, Mehmet Cansel, Ertugrul Kurtoglu, Siho Hidayet, Nusret Acıkgoz, Necip Ermis, Fatma Ozyalin
OBJECTIVE: To evaluate left atrial (LA) volume and functions in obese subjects using real time three-dimensional echocardiography (RT3DE) and also the relationship between LA mechanical functions and N-terminal pro-atrial natriuretic peptide (NT-proANP). METHODS: This study included 40 obese (26 females and 14 males, mean age 51.9 years) and 40 normal weight subjects (23 females and 16 males, mean age 53.5 years) with normal coronary angiograms. All the study participants underwent RT3DE to assess LA volume and mechanical function...
December 9, 2016: Echocardiography
https://www.readbyqxmd.com/read/27933442/arterial-pulse-wave-propagation-velocity-in-healthy-dogs-by-pulse-wave-doppler-ultrasound
#2
Rodrigo B Nogueira, Lucas A Pereira, Alice F Basso, Ingrid S da Fonseca, Lorena A Alves
The aim of this study was to prospectively evaluate the carotid-femoral pulse wave velocity (PWV) values in healthy dogs using pulse wave Doppler ultrasound. A secondary aim was to determine the feasibility of this method and to report the intra- and interobserver reproducibilities of the PWV in conscious dogs. The data were studied in 30 healthy, adult, male (n = 15) and female (n = 15) dogs. The time interval marked between the R wave peak of the electrocardiogram and the intersection of the blood flow wave upstroke of the Doppler spectrum with the baseline of zero frequency was determined for the carotid (T1) and for the femoral (T2) arteries...
December 8, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27933439/measurement-of-carotid-pulse-wave-velocity-using-ultrafast-ultrasound-imaging-in-hypertensive-patients
#3
Xiaopeng Li, Jue Jiang, Hong Zhang, Hua Wang, Donggang Han, Qi Zhou, Ya Gao, Shanshan Yu, Yanhua Qi
PURPOSE: The study aimed to assess the utility of ultrafast ultrasound imaging for evaluation of carotid pulse wave velocity (PWV) in newly diagnosed hypertension patients. METHODS: This prospective non-randomized study enrolled 90 hypertensive patients in our hospital from September to December 2013 as a hypertension group. An age- and sex-matched cohort of 50 healthy adults in our hospital from September to December 2013 was also included in the study as a control group...
December 8, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27933438/acoustic-radiation-force-impulse-arfi-elastography-in-the-evaluation-of-renal-parenchymal-stiffness-in-patients-with-ureteropelvic-junction-obstruction
#4
Hatice Arioz Habibi, Rumeysa Yasemin Cicek, Sedat Giray Kandemirli, Emel Ure, Ayse Kalyoncu Ucar, Mine Aslan, Salim Caliskan, Ibrahim Adaletli
PURPOSE: To investigate the role of acoustic radiation force impulse (ARFI) elastography in the detection of renal parenchymal damage in kidneys with and without ureteropelvic junction obstruction (UPJO). METHODS: Twenty-five pediatric patients with a diagnosis of UPJO who underwent surgery and 15 pediatric patients with conservatively managed UPJO were prospectively evaluated with ARFI elastography. Sixteen healthy volunteers constituted the control group. Shear wave velocity (SWV) measurements in the upper, mid, and lower poles of the affected kidney were performed...
December 8, 2016: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/27933283/neonatal-diagnostics-toward-dynamic-growth-charts-of-neuromotor-control
#5
Elizabeth B Torres, Beth Smith, Sejal Mistry, Maria Brincker, Caroline Whyatt
The current rise of neurodevelopmental disorders poses a critical need to detect risk early in order to rapidly intervene. One of the tools pediatricians use to track development is the standard growth chart. The growth charts are somewhat limited in predicting possible neurodevelopmental issues. They rely on linear models and assumptions of normality for physical growth data - obscuring key statistical information about possible neurodevelopmental risk in growth data that actually has accelerated, non-linear rates-of-change and variability encompassing skewed distributions...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27932678/adjustments-with-running-speed-reveal-neuromuscular-adaptations-during-landing-associated-with-high-mileage-running-training
#6
Jasper Verheul, Adam C Clansey, Mark J Lake
It remains to be determined whether running training influences the amplitude of lower limb muscle activations prior to and during the first half of stance, and whether such changes are associated with joint stiffness regulation and usage of stored energy from tendons. Therefore, the aim of this study was to investigate neuromuscular and movement adaptations before and during landing in response to running training across a range of speeds. Two groups of high mileage (HM; >45 km/wk, n=13) and low mileage (LM; <15 km/wk, n=13) runners ran at four speeds (2...
December 8, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27932550/spermaurin-an-la1-like-peptide-from-the-venom-of-the-scorpion-scorpio-maurus-palmatus-improves-sperm-motility-and-fertilization-in-different-mammalian-species
#7
Guillaume Martinez, Jean-Pascal Hograindleur, Sébastien Voisin, Roland Abi Nahed, Tarek M Abd El Aziz, Jessica Escoffier, Julien Bessonnat, Claire-Maëlle Fovet, Michel De Waard, Sylviane Hennebicq, Vincent Aucagne, Pierre F Ray, Eric Schmitt, Philippe Bulet, Christophe Arnoult
STUDY QUESTION: Is it possible to identify original compounds that are able to enhance sperm motility from the venom of the scorpion Scorpio maurus palmatus? SUMMARY ANSWER: We identified a potent disulfide-rich peptide (DRP) of 73 amino acids that significantly improved the motility of fresh and frozen-thawed sperm in different mammalian species, including human, and improved fertilization outcome in mouse IVF experiments. WHAT IS KNOWN ALREADY: Any disturbance of sperm motility has a strong impact on fertilization and can lead to subfertility or infertility...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27932509/use-of-phase-contrast-mra-to-assess-intracranial-venous-sinus-resistance-to-drainage-in-healthy-individuals
#8
S Fall, G Pagé, J Bettoni, R Bouzerar, O Balédent
BACKGROUND AND PURPOSE: Resistance to blood flow in the cerebral drainage system may affect cerebral hemodynamics. The objective of the present study was to use phase-contrast MRA to quantify resistance to drainage of blood across branches of the venous sinus tree and to determine whether the resistance to drainage values correlated with internal jugular vein outflows. MATERIALS AND METHODS: We performed whole-head phase-contrast MRA and 2D phase-contrast MR imaging in 31 healthy volunteers...
December 8, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27932239/the-therapeutic-effect-of-rosuvastatin-and-propylthiouracil-on-ameliorating-high-cholesterol-diet-induced-rabbit-aortic-atherosclerosis-and-stiffness
#9
Pao-Yuan Lin, Fan-Yen Lee, Christopher Glenn Wallace, Kuan-Hung Chen, Gour-Shenq Kao, Pei-Hsun Sung, Sarah Chua, Sheung-Fat Ko, Yung-Lung Chen, Shun-Cheng Wu, Hsueh-Wen Chang, Hon-Kan Yip, Pei-Lin Shao
BACKGROUND: We tested the hypothesis that arteriosclerosis-augmented aortic pulse wave velocity (PWV) and -impaired vasorelaxation were attenuated by rosuvastatin (Rosu) and propylthiouracil (PTU) therapy. METHODS AND RESULTS: Thirty-two New Zealand rabbits were equally divided into group 1 (sham-control), group 2 [high-cholesterol-diet (HCD) for 8weeks], group 3 [HCD-Rosu (20mg/kg/day administration after 4-week HFD for 4weeks)], and group 4 [HCD-PTU (0.1% PTU in drinking water), the treatment course as group 3]...
September 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27932212/atmospheric-deposition-of-particles-at-a-sensitive-alpine-lake-size-segregated-daily-and-annual-fluxes-from-passive-sampling-techniques
#10
Anna Y-C Tai, L-W Antony Chen, Xiaoliang Wang, Judith C Chow, John G Watson
Lake Tahoe, a North American alpine lake long appreciated for its clear water and geographic setting, has experienced a trend of declining water clarity due to increasing nutrient and particle inputs. Contributions from atmospheric deposition of particulate matter (PM) could be important, yet they are inadequately quantified. This study established a yearlong deposition monitoring network in the northern Lake Tahoe Basin. Dry deposition was quantified on surrogate surfaces while wet deposition was based on particles suspended in precipitation at 24-hour resolution...
December 5, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27932173/a-case-report-of-severe-hepatic-artery-vasospasm-induced-by-hepatic-arterial-buffer-response-after-liver-transplantation
#11
Y Hiraki, K Uchida, S Nishida, D M Levi, G Selvaggi, A Tekin, J Fan, T Froud, A G Tzakis
The management of severe hepatic artery vasospasm soon after liver transplantation (LT) is challenging because it can lead to hepatic artery thrombosis and subsequent graft failure. A 61-year-old man with hepatitis C cirrhosis and portal vein thrombosis received a deceased donor LT. On postoperative day 1, Doppler ultrasonography revealed a high-resistance waveform in the hepatic artery. Angiography showed severe vasospasm of the donor hepatic artery on postoperative day 3. Strong hepatic arterial buffer response (HABR) was considered for this etiology due to high portal vein velocity...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27932155/late-allograft-renal-vein-thrombosis-treated-with-anticoagulation-alone-a-case-report
#12
C Ferreira, L Pereira, P Pereira, I Tavares, S Sampaio, M Bustorff, M Pestana
BACKGROUND: Allograft renal vein thrombosis is a rare complication of kidney transplantation. Most cases occur in the first 2 weeks after transplantation, but there are cases described many years after the transplant surgery. Allograft loss is the usual outcome. METHODS: We present a case of a renal transplant recipient with allograft renal vein thrombosis associated with deep venous thrombosis of a lower limb, 9 years after transplantation. He was successfully treated with anticoagulation alone, with recovery of allograft function...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27931184/postprocedural-radial-artery-occlusion-rate-using-a-sheathless-guiding-catheter-for-left-ventricular-endomyocardial-biopsy-performed-by-transradial-approach
#13
Behrouz Kherad, Clemens Köhncke, Frank Spillmann, Heiner Post, Michel Noutsias, Burkert Pieske, Florian Krackhardt, Carsten Tschöpe
BACKGROUND: For coronary interventions the arterial access via the radial artery is associated with fewer vascular access site complications, and has been shown to reduce major bleeding when compared to the femoral approach. But the endomyocardial biopsy (EMB) approach is usually done by a transfemoral or cervical access known to be associated with an increased risk of artery puncture and its potential complications (i.e., false aneurysm, artery-venous fistula) and needs post-procedural immobilization...
December 8, 2016: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/27931172/biomechanical-response-of-the-infant-head-to-shaking-an-experimental-investigation
#14
Carol Jenny, Gina Bertocci, Tsuguhiro Fukuda, Nagarajan Rangarajan, Tariq Shams
Controversy exists regarding whether violent shaking is harmful to infants in the absence of impact. In this study, our objective was to characterize the biomechanical response of the infant head during shaking through use of an instrumented anthropomorphic test device (commonly referred to as a 'crash test dummy' or infant surrogate) representing a human infant and having improved biofidelity. A series of tests were conducted to simulate violent shaking of an infant surrogate. The Aprica 2.5 infant surrogate represented a 5th percentile Japanese newborn...
December 8, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27931131/baseline-and-treatment-related-changes-in-thrombin-generation-in-patients-with-multiple-myeloma
#15
Ing S Tiong, Susan E Rodgers, Cindy H S Lee, Simon J McRae
The prothrombotic risk in multiple myeloma (MM) could be potentially assessed by thrombin generation (TG) assays. TG was performed using Calibrated Automated Thrombography with 5 and 1 pM tissue factor. We compared baseline TG among 24 MM patients, 19 MGUS, and 50 healthy controls, and assessed change in TG in MM patients during the initial treatment period at 1, 2, and 3 months. MM subjects demonstrated increased FVIII and VWF:Ag levels pretreatment, and a prothrombotic TG phenotype with increased velocity index, reduced lag time and time-to-peak, and increased resistance to thrombomodulin inhibition...
December 8, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27930917/love-mode-surface-acoustic-wave-devices-based-on-multilayers-of-teo2-zno-112%C3%A2-0-si-100-with-high-sensitivity-and-temperature-stability
#16
Jing-Ting Luo, Ao-Jie Quan, Guang-Xing Liang, Zhuang-Hao Zheng, Sami Ramadan, Chen Fu, Hong-Lang Li, Yong-Qing Fu
A multilayer structure of TeO2/interdigital transducers (IDTs)/ZnO(112¯0)/Si(100) was proposed and investigated to achieve both high sensitivity and temperature-stability for bio-sensing applications. Dispersions of phase velocities, electromechanical coupling coefficients K(2), temperature coefficient of delay (TCD) and sensitivity in the multilayer structures were simulated as functions of normalized thicknesses of ZnO (hZnO/λ) and TeO2 (hTeO2/λ) films. The fundamental mode of Love mode (LM) - surface acoustic wave (SAW) shows a larger value of K(2) and higher sensitivity compared with those of the first mode...
November 25, 2016: Ultrasonics
https://www.readbyqxmd.com/read/27930790/detection-of-keratoconus-with-a-new-biomechanical-index
#17
Riccardo Vinciguerra, Renato Ambrósio, Ahmed Elsheikh, Cynthia J Roberts, Bernardo Lopes, Emanuela Morenghi, Claudio Azzolini, Paolo Vinciguerra
PURPOSE: To evaluate the ability of a new combined biomechanical index called the Corvis Biomechanical Index (CBI) based on corneal thickness profile and deformation parameters to separate normal from keratoconic patients. METHODS: Six hundred fifty-eight patients (329 eyes in each database) were included in this multicenter retrospective study. Patients from two clinics located on different continents were selected to test the capability of the CBI to separate healthy and keratoconic eyes in more than one ethnic group using the Corvis ST (Oculus Optikgeräte GmbH, Wetzlar, Germany)...
December 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27930582/renal-volume-and-cardiovascular-risk-assessment-in-normotensive-autosomal-dominant-polycystic-kidney-disease-patients
#18
Laia Sans, Julio Pascual, Aleksandar Radosevic, Claudia Quintian, Mireia Ble, Lluís Molina, Sergi Mojal, José A Ballarin, Roser Torra, Patricia Fernández-Llama
Cardiovascular disease, closely related to an early appearance of hypertension, is the most common mortality cause among autosomal dominant polycystic kidney disease patients (ADPKD). The development of hypertension is related to an increase in renal volume. Whether the increasing in the renal volume before the onset of hypertension leads to a major cardiovascular risk in ADPKD patients remains unknown.Observational and cross-sectional study of 62 normotensive ADPKD patients with normal renal function and a group of 28 healthy controls...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27930481/postoffer-pre-placement-screening-for-carpal-tunnel-syndrome-in-newly-hired-manufacturing-workers
#19
Ann Marie Dale, Bethany T Gardner, Skye Buckner-Petty, Jaime R Strickland, Bradley Evanoff
OBJECTIVE: We determined the predictive validity of a postoffer pre-placement (POPP) screen using nerve conduction velocity studies (NCV) to identify future cases of carpal tunnel syndrome (CTS). METHODS: A cohort of 1648 newly hired manufacturing production workers underwent baseline NCS, and were followed for 5 years. RESULTS: There was no association between abnormal POPP NCV results and incident CTS. Varying NCV diagnostic cut-offs did not improve predictive validity...
December 2016: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/27930445/motion-and-muscle-activity-are-affected-by-instability-location-during-a-squat-exercise
#20
Brian C Nairn, Chad A Sutherland, Janessa D M Drake
Squat exercise training using instability devices have become increasingly popular for a multitude of reasons. Many devices generate instability at the feet and provide a bottom-up perturbation; however, the effect of a top-down instability device during a squat remains unclear. In order to induce instability at the upper body, a water-filled cylinder called the Attitube® was used. This study analyzed the effects of instability location (top-down, bottom-up, no instability) during a squat exercise in terms of kinematics and muscle activation...
November 19, 2016: Journal of Strength and Conditioning Research
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